Which from endocrine glands is responsible for a regulation of sleep?

hypothalamus
adrenal glands
thymus
pineal gland
The pineal gland is a small en­docrine gland in the ver­te­brate brain. It produces mela­ton­in, a sero­tonin derived hormone, which affects the mod­u­la­tion of sleep pat­tern­s. Mela­tonin is sold over-the-­counter as a sleep aid in the U.S. and Canada.

Answers distribution

hypothalamus
adrenal glands
thymus
pineal gland
answers
flagSpain
27%
0%
0%
72%
11
flagGermany
16%
7%
8%
65%
129
flagRepublic of Ireland
27%
4%
2%
65%
43
flagthe Netherlands
22%
0%
12%
64%
31
flagPoland
21%
7%
7%
63%
10008
flagFrance
16%
16%
2%
63%
36
flagCzech Republic
26%
0%
10%
63%
19
flagSweden
15%
7%
15%
61%
13
flagthe United Kingdom
24%
8%
8%
57%
257
flagIndia
24%
13%
6%
54%
168
flagNorway
31%
0%
15%
52%
19
flagCanada
32%
10%
5%
51%
37
flagUnknown
35%
7%
7%
47%
106
flagthe United Arab Emirates
38%
7%
0%
46%
13
flagthe Philippines
30%
11%
15%
42%
26
flagPakistan
38%
14%
4%
42%
21
flagMalaysia
26%
20%
6%
40%
15
flagthe United States
32%
12%
14%
39%
423
flagIndonesia
45%
18%
0%
36%
11
flagAustralia
36%
9%
27%
27%
11

Gender

men48%
women54%
hypothalamus
28%
26%
adrenal glands
11%
9%
thymus
11%
9%
pineal gland
48%
54%

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Which from endocrine glands is responsible for a regulation of sleep?
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Details

Author: Paweł Kołodziejczyk
Illustration: Tambako The Jaguar
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